Ch 11 Inference for Means

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Chapter 11: Inference for Means (Total Time: 9 Days)

• Inference for the Mean of a Population
o What to do when SIGMA is unknown – t Comparing two Means
KA 44: Z-statistics vs. T-statistics

o Confidence intervals and significance tests with t
KA 47: T-Statistic Confidence Interval

o Matched pairs – a special case of one-sample t
o Robustness of t procedures; calculator use
• Comparing Two Means
o Matched pairs vs. two independent samples
o Comparing two population means
o More accurate degrees of freedom from technology
KA 49: Variance of Differences of Random Variables
KA 50: Difference of Sample Means Distribution
KA 51: Confidence Interval of Difference of Means
KA 52: Clarification of Confidence Interval of Difference of Means
KA 53: Hypothesis Test for Difference of Means